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A278278 Number of nX6 0..1 arrays with every element both equal and not equal to some elements at offset (-1,-1) (-1,0) (-1,1) (0,-1) (0,1) or (1,0), with upper left element zero. 1
0, 109, 3723, 172091, 7466627, 329985827, 14526103064, 640011857446, 28192246592564, 1241921389868057, 54708244420668156, 2409976614356023808, 106162841585764737411, 4676622598537493878129, 206011798163918590188603 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Column 6 of A278280.
LINKS
FORMULA
Empirical recurrence of order 98 (see link above)
EXAMPLE
Some solutions for n=4
..0..1..0..0..1..1. .0..0..1..1..0..0. .0..0..1..0..1..0. .0..0..0..1..1..0
..0..1..1..1..1..0. .1..0..0..1..1..1. .1..0..1..0..1..0. .1..1..1..1..0..0
..0..0..0..0..1..0. .1..1..0..0..1..1. .1..1..0..1..1..0. .1..0..0..1..0..1
..1..1..1..0..0..0. .0..0..1..1..0..0. .0..0..1..0..0..1. .0..1..0..0..0..1
CROSSREFS
Cf. A278280.
Sequence in context: A232198 A232416 A333116 * A280626 A357231 A227949
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 16 2016
STATUS
approved

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Last modified March 4 10:39 EST 2024. Contains 370528 sequences. (Running on oeis4.)